Just received some Korkers i-Drain 3.5mm XL wading socks with the fold down gravel guards. Supposed to have 4-way stretch neoprene, but it's sure as heck not very stretchy. Furthermore, the gravel guards are stiched on, not simple fold over so there is a relatively tight constriction point right there, much tighter than the rest. No go after trying one side on in the house. Can anyone recommend a good neoprene wet wading sock for people with wide to very wide calves? Thanks in advance.